An HMO loft conversion adds one or two letting rooms, often with an ensuite, in the roof space. Landlords in Daventry (NN11) usually come to us with a council letter, a fire risk assessment or a house they have just bought. We price from whichever you have.
- Area
- Northamptonshire, England
- Postcodes
- NN11
- Location
- 18 miles south-east of Coventry
- Council
- West Northamptonshire Council
- Pricing region
- East Midlands
What do loft conversions for extra rooms in Daventry involve?
- Fire doors and extended alarm system
- Ensuite where space allows
- Planning or permitted development check
- Dormer or roof windows
- New stair within the protected route
Which rules apply in Daventry?
Loft conversions for extra rooms in Daventry must satisfy national law for England, the council’s written HMO standards and, where walls, drainage or fire separation change, the building rules. In short:
- 7 or more sharers is a sui generis large HMO and normally needs planning permission.
- Building regulations cover structural changes, new partitions, ensuite drainage, fire-resisting construction and notifiable electrical work.
- Fire precautions follow a risk assessment; the LACORS Housing – Fire Safety guide (2008) is guidance, not law, but many councils base their standards on it.
- Licensed HMOs must meet national minimum bedroom sizes: 6.51 m² for one person aged 10 or over, 10.22 m² for two, and 4.64 m² for a child under 10.
West Northamptonshire Council: local HMO schemes
| Article 4 (HMO) | In force in part of the council area Article 4 directions cover several areas of Northampton (from 2011 onwards). |
|---|---|
| Additional licensing | In force in part of the council area Additional licensing in 20 wards across Northampton and Daventry 24 Feb 2025-23 Feb 2030 (replaced 2020-2025 scheme). |
| Selective licensing | No scheme found |
Schemes change. Check the council’s current pages for the exact address in Daventry before you buy or start work. Source: West Northamptonshire Council HMO licensing page, checked 2026-10-31.
How much do loft conversions for extra rooms cost in Daventry?
| Item | UK typical | Local guide | Per |
|---|---|---|---|
| Dormer loft conversion, about 30 m² | £40,000 – £60,000 | £38,800 – £58,200 | project |
| Rooflight loft conversion, about 30 m² | £22,500 – £30,000 | £21,800 – £29,100 | project |
Prices in Daventry are shown with our regional adjustment for East Midlands (below the UK average). Your quote is itemised and fixed in writing once the scope and specification are agreed.
How long does it take?
Allow 6–10 weeks on site for a typical job. Drawings, approvals and long-lead items such as kitchens or fire door sets are booked before we start.
When do Daventry landlords need it?
Landlords in Daventry most often ask us for this when:
- Adding rooms to make an HMO work financially
- Moving to a larger HMO with the right consents
Questions about loft conversions for extra rooms in Daventry
How much head height do I need?
As a rule of thumb, about 2.2 metres at the highest point of the existing roof space before any work. Less can work with a dormer or lowered ceilings.
Do you cover all of Daventry?
Yes. We work across Daventry and the NN11 postcode areas, plus the rest of Northamptonshire. Nearby places we also cover include Rugby, Northampton, Royal Leamington Spa.
Which council covers HMOs in Daventry?
Daventry is covered by West Northamptonshire Council. We read the council’s written HMO standards before pricing, and you should check the licence position for the exact address.
How much do loft conversions for extra rooms cost in Daventry?
Our guide ranges for East Midlands are in the table on this page, and the guide-price tool gives a figure for your house. A fixed written quote follows a free site visit.
Loft conversions for extra rooms near Daventry
- Rugby · 9 mi
- Northampton · 12 mi
- Royal Leamington Spa · 15 mi
- Banbury · 15 mi
- Warwick · 18 mi
- Coventry · 18 mi
- All of Northamptonshire
Other HMO services in Daventry
- Extensions for extra rooms in Daventry
- Large HMO conversions (7+ sharers) in Daventry
- Escape routes, emergency lighting and fire stopping in Daventry
- Ensuite installation in Daventry
- Layout changes and room reconfiguration in Daventry
- Fire alarm and detection systems in Daventry
- Void and between-tenancy refurbs in Daventry
- Rewires and EICR remedials in Daventry